There are two indicators of a process shift-points outside the control limits and an upward or downward trend in the process average.

Question

Quizplus · Accepted Answer

Points outside the control limits indicate that the process is not stable and there has been a shift in the process. An upward or downward trend in the process average also indicates a shift in the process. Therefore, both points outside the control limits and a trend in the process average are indicators of a process shift.

There Are Two Indicators of a Process Shift-Points Outside the Control